Add support for getting the memory map from EFI if it has been pased in
by loader.efi.
This commit is contained in:
Andrew Turner
parent
523be40fe4
commit
82c447f562
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=283426
@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/bus.h>
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#include <sys/cons.h>
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#include <sys/cpu.h>
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#include <sys/efi.h>
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#include <sys/exec.h>
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#include <sys/imgact.h>
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#include <sys/kdb.h>
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@ -71,6 +72,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/mutex.h>
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#include <sys/pcpu.h>
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#include <sys/ptrace.h>
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#include <sys/reboot.h>
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#include <sys/rwlock.h>
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#include <sys/sched.h>
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#include <sys/signalvar.h>
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@ -1102,6 +1104,113 @@ set_stackptrs(int cpu)
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}
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#endif
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#ifdef EFI
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#define efi_next_descriptor(ptr, size) \
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((struct efi_md *)(((uint8_t *) ptr) + size))
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static void
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add_efi_map_entries(struct efi_map_header *efihdr, struct mem_region *mr,
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int *mrcnt, uint32_t *memsize)
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{
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struct efi_md *map, *p;
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const char *type;
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size_t efisz, memory_size;
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int ndesc, i, j;
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static const char *types[] = {
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"Reserved",
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"LoaderCode",
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"LoaderData",
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"BootServicesCode",
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"BootServicesData",
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"RuntimeServicesCode",
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"RuntimeServicesData",
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"ConventionalMemory",
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"UnusableMemory",
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"ACPIReclaimMemory",
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"ACPIMemoryNVS",
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"MemoryMappedIO",
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"MemoryMappedIOPortSpace",
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"PalCode"
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};
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*mrcnt = 0;
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*memsize = 0;
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/*
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* Memory map data provided by UEFI via the GetMemoryMap
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* Boot Services API.
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*/
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efisz = roundup2(sizeof(struct efi_map_header), 0x10);
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map = (struct efi_md *)((uint8_t *)efihdr + efisz);
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if (efihdr->descriptor_size == 0)
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return;
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ndesc = efihdr->memory_size / efihdr->descriptor_size;
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if (boothowto & RB_VERBOSE)
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printf("%23s %12s %12s %8s %4s\n",
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"Type", "Physical", "Virtual", "#Pages", "Attr");
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memory_size = 0;
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for (i = 0, j = 0, p = map; i < ndesc; i++,
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p = efi_next_descriptor(p, efihdr->descriptor_size)) {
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if (boothowto & RB_VERBOSE) {
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if (p->md_type <= EFI_MD_TYPE_PALCODE)
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type = types[p->md_type];
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else
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type = "<INVALID>";
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printf("%23s %012llx %12p %08llx ", type, p->md_phys,
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p->md_virt, p->md_pages);
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if (p->md_attr & EFI_MD_ATTR_UC)
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printf("UC ");
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if (p->md_attr & EFI_MD_ATTR_WC)
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printf("WC ");
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if (p->md_attr & EFI_MD_ATTR_WT)
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printf("WT ");
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if (p->md_attr & EFI_MD_ATTR_WB)
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printf("WB ");
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if (p->md_attr & EFI_MD_ATTR_UCE)
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printf("UCE ");
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if (p->md_attr & EFI_MD_ATTR_WP)
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printf("WP ");
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if (p->md_attr & EFI_MD_ATTR_RP)
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printf("RP ");
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if (p->md_attr & EFI_MD_ATTR_XP)
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printf("XP ");
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if (p->md_attr & EFI_MD_ATTR_RT)
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printf("RUNTIME");
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printf("\n");
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}
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switch (p->md_type) {
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case EFI_MD_TYPE_CODE:
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case EFI_MD_TYPE_DATA:
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case EFI_MD_TYPE_BS_CODE:
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case EFI_MD_TYPE_BS_DATA:
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case EFI_MD_TYPE_FREE:
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/*
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* We're allowed to use any entry with these types.
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*/
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break;
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default:
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continue;
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}
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j++;
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if (j >= FDT_MEM_REGIONS)
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break;
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mr[j].mr_start = p->md_phys;
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mr[j].mr_size = p->md_pages * PAGE_SIZE;
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memory_size += mr[j].mr_size;
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}
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*mrcnt = j;
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*memsize = memory_size;
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}
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#endif /* EFI */
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#ifdef FDT
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static char *
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kenv_next(char *cp)
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@ -1413,6 +1522,9 @@ initarm(struct arm_boot_params *abp)
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char *env;
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void *kmdp;
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int err_devmap, mem_regions_sz;
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#ifdef EFI
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struct efi_map_header *efihdr;
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#endif
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/* get last allocated physical address */
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arm_physmem_kernaddr = abp->abp_physaddr;
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@ -1445,9 +1557,20 @@ initarm(struct arm_boot_params *abp)
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if (OF_init((void *)dtbp) != 0)
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panic("OF_init failed with the found device tree");
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/* Grab physical memory regions information from device tree. */
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if (fdt_get_mem_regions(mem_regions, &mem_regions_sz, &memsize) != 0)
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panic("Cannot get physical memory regions");
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#ifdef EFI
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efihdr = (struct efi_map_header *)preload_search_info(kmdp,
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MODINFO_METADATA | MODINFOMD_EFI_MAP);
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if (efihdr != NULL) {
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add_efi_map_entries(efihdr, mem_regions, &mem_regions_sz,
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&memsize);
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} else
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#endif
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{
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/* Grab physical memory regions information from device tree. */
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if (fdt_get_mem_regions(mem_regions, &mem_regions_sz,
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&memsize) != 0)
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panic("Cannot get physical memory regions");
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}
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arm_physmem_hardware_regions(mem_regions, mem_regions_sz);
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/* Grab reserved memory regions information from device tree. */
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@ -67,3 +67,6 @@ device random # Entropy device
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# Flattened Device Tree
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options FDT # Configure using FDT/DTB data
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# Extensible Firmware Interface
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options EFI
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@ -22,6 +22,7 @@ CPU_XSCALE_IXP425 opt_global.h
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CPU_XSCALE_IXP435 opt_global.h
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CPU_XSCALE_PXA2X0 opt_global.h
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DEV_GIC opt_global.h
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EFI opt_platform.h
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FLASHADDR opt_global.h
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GIC_DEFAULT_ICFGR_INIT opt_global.h
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IPI_IRQ_START opt_smp.h
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